Apparently Griffiths Valuation was taken in Kildare in 1851. It mentions three Hendys:-
Hendy Thomas of Lipstown Upper, Davidstown, Kildare
Hendy Henry of Lipstown Upper, Davidstown, Kildare
Hendy George of Lipstown Upper Davidstown, Kildare.
It was common for a couple to marry in the bride's parish - so that may account for the mention of Wicklow - which is closeby.
Cheers